1991 Lexus LS 400

FUJIHANO

MEMBER
1991 LEXUS LS 400

Engine Performance problem
1991 Lexus LS 400 V8 Automatic 98100 miles

Everytime I start or come to a stop while driving, the car keeps shaking. I purchased new coil, gave the car a tune up and I am at my wits end.

Thursday, February 21st, 2008 AT 7:36 PM

1 Reply

2CARPRO JACK

MECHANIC
11,533 POSTS

Need to find out which cylinder is missing. If you can access the injector plugs, unplug them one at a time until there is NO change. That is the one. Do a compression test, if ok, use a meter to check the wire, if ok it is probably the injector. Try cleaning the Idle Air Control Motor. Also clean out around the butterfly in the throttle bore with carb cleaner and a rag. This should help stabilize the idle